About: http://webisa.webdatacommons.org/162017259

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	I suppose a solution could be installing some dummy package which does nothing except depend on them, but I fell this would be horribly ugly.
http://www.w3.org/ns/prov#wasQuotedFrom	gentoo.org